Document mVq96jGRBaQ8KxkEmbbwgeJO

PLAINTIFF'S EXHIBIT TECHNICAL CHANGE ORDER CertatrifeecO CerlainTeed Corporation Pipe and Plastics Group APPLICABLE TO! Standard Purchasing Specification DATE OF ISSUE: 500 t.c.o. no.: PAGE NO.: 1 description: Portland Cement* 1 2 3 Purpose: 1. This specification is being revised to reflect the desired quality level of incoming Portland Cement as determined by the most recent technology and experience. 2. The revision applies only to Plant 257. Several more revisions may be anticipated as minor changes in the source. (Lehigh Portland Cement Company) are made. 3. With time, the development of an operating specification will be effected as the combined test data and resultant process and product quality define a suitable cement. Effective Date: Date of issue. Disposition of Superseded Pages: None. This is a new Issue but it does replace the requirements on Page k of Specification 500, dated May 21, 1971. Distribution of this Spec. only. R. Magargal M. R. Streepy C. H. Striegel (1) Standards File (5) J. p. McGinley B. H. Jo R. 0. Murphree (6) TECHNICAL SPECIFICATIONS CertaSnTaed^ SPECIFICATIONS CLASSIFICATION: Standard Purchasing Specification - Appendix T.C.O. REF. NO. SPECIFICATION NO: PACE NO.: CertainTeed Corporation Pipe and Plastics Group supersedes: 500 DATE OF I6SUET 1 description: Portland Cement - Hillsboro Plant HOT TO BE DISTRIBUTED TO VENDORS The interim properties for cement supplied by Lehigh Portland Cement Company are as follows: CHEMICAL ANALYSIS Property C3S C2S C3A C/,AF Na20 K20 Total Na20 Equiv.* Free CaO MgO Si02 Fe203 ai2o3 Loss on Ignition SO3 Min. 9-5 7.0 Max. 11.5 ,8.5 Norn. 56.0 19.0 10.0 7-5 0.15 0.65 0.3 0.9 0.55 1.9 2.3 2.2 PHYSICAL TESTS Property Blaine, S.A., cm2/gm Compressive Strength 21* Hrs ., psi 7 Days, psi 28 Days, psi Air Entrained, Autoclave Exp., %* Initial Hydration Rate, mv** A1ka1inity, ppm Min. 3000 3.0 Max. Norn.* 7 3^00 3^00 1080 5-5 ^.0 Gypsum Anhydrite SULFATE SOURCE 60% ^0% *Vendor Supplied Optional Data. **This number is applicable only to Hillsboro's calorimeter where calibration constant is 0.0083 cal/sec/ millivolt. For comparison with other instrument's data, the mv output must be converted into cal unit by a conversion factor of the individual instrument's calibration constant. The technique is described in TM-1*A. NOTE - The above descriptions are meant to be used as guidelines for a suitable cement. Cement is not to be rejected via this specification unless there is a gross departure. PREPARED OY: APPROVED BY: RLD - >/ MFC. a&- BALES I.E. 02-10-00233 (P927) 12/760CONFIDENTIAL DOCUMENT * NOT TO BE DISTRIBUTED TO UNAUTHORIZED PERSONNEL CTD010160 TECHNICAL CHANGE ORDER APPLICABLE TO: hujt; CerlainTeed Corporation Pipe and Plastics Group description: Standard Purchasing Specification DATE OF ISSUE: 500 T.C.O. NO.*. PAGE NO.: JAN 2 2 1982 51 Portland Cement Purpose: 1. This specification is being revised to reflect the desired quality level of incoming Portland Cement as determined by the most recent technology and experience. 2. The revision applies only to Plant 257- Several more revisions may be anticipated as minor changes in the source. (Lehigh Portland Cement Company) are made. 3. With time, the development of an operating specification will be effected as the combined test data and resultant process and product quality define a suitable cement. Effective Date: Date of issue. Disposition of Superseded Pages: None. This is a new issue but it does replace the requirements on Page 4 of Specification 500, dated May 21, 1971. Distribution of this Spec. only. R. Magargal M. R. Streepy C. H. Striegel (1) Standards File (5) J. P. McGinley B. H. Jo R. D. Murphree (6) CTD010161 PREPARED Or: APPROVED BY*. R a JO MFG. SALES I.E. OTHERS % 'vn-ip. 03- 0-00;`lj (obohty \ QjfcS_______________:_______________ __ju iV/Jfi CONPIOCNTIAL OOCUMENT NOT TO DE DI3TRlfe'tiTCO TO UNAUTHORISED PERSONNEL TECHNICAL SPECIFICATIONS SPECIFICATIONS CLASSIFICATION: wvl lawSOa CertainTeed Corporation Pipe and Plastics Group description: Standard Purchasing Specification - Appendix T.C.O. REF. NO. SPECIFICATION NO: PAGE NO.: SUPERSEDES^ 500 DATE OF ISSUE: 1 JAN 2 2 198? Portland Cement - Hillsboro Plant NOT TO BE DISTRIBUTED TO VENDORS The interim properties for cement supplied by Lehigh Portland Cement Company are as fo11ows: >' % CHEMICAL ANALYSIS Property C3S C2S C3A C/,AF Na20 K20 Total Na20 Equiv. j. Free CaO MgO Si02 Fe203 Al203 Loss on Ignition SO3 Min. rr /d b0 7.0 Max. Norn. ^/ +1-75- 56.0 19.0 9.0 10.0 8.5 7.5 0.15 0.65 0.3 0.9 0.55 1.9 2.3 2.2 PHYSICAL TESTS Property Min. Max. Blaine, S.A., cm^/gm 3200 3600 Compressive Strength 2k Hrs., psi 7 Days, psi 28 Days, psi Air Entrained, %* Autoclave Exp., Initial Hydration Rate, mv-- 3-0 5-5 Alkalinity, ppm Norn. 3A00 1080 4.0 Gypsum Anhydrite SULFATE SOURCE 603s k0% *Vendor Supplied Optional Data. **This number is applicabl e only to Hi llsboro's calorimeter where calibrat ion constant is O.OO83 cal/sec., mi 11ivolt. For comparison with other instrument's data, the mv output must be converted into cal unit by a conversion factor of the individual instrument's calibration constant. The technique is described in TM-- 4-4. NOTE - The above descriptions are meant to be used as guidelines for a suitable cement. Cement is not to be rejected via this specification unless there is a gross departure. PREPARED BY: APPROVED BY: 0 MFG. Alt' SALES I.E. 1 CONFIDENTIAL. DOCUMENT - NOT TO BE DISTRIBUTED TO UNAUTHORIZED PERSONNEL CTD010162